Linotype-machine.



H. PETERSEN. LINOTYPE MACHINE.

APPLICATION FILED NOV-13.1916.

Patented May 2, 1916.

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H. PETERSEN.

LINOTYPE MACHINE.

APPLICATION mu) NOV. 13. 1915.

1 1 8 1 ,245 Patent-ed May 2, 1916.

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HANS PETERSEN, OF DAVENPORT, IOWA, ASSIGNOR TO THE LINOGRAPH COMPANY, OF DAVENPORT, IOWA, A CORPORATION.

LINOTYPE-MACHINE.

Specification of Letters latent.

Patented May 2, 1916.

To all whom it may concern:

Be it known that I, HANS PETERSEN, a citizen of the United States, residing at Davenport, in the county of Scott and State of Iowa, have invented certain new and useful Improvements in Linotype-Machines, of which the following is a specification.

This invention relates to improvements in linotype machines and more particularly to improved distributing mechanism of the character embodying a stationary horizontal bar having a lower part of V-shaped formation and provided with short longitudinal teeth, varying in number and arrangement at difierent points in the length of the bar for the purpose of giving support to the matrices, which have their upper ends notched and provided with teeth to engage those on the bar, the arrangement being such that each matrix is supported as it is moved along the bar until it arrives over its proper channel at which point they are released from the distributing bar and fall by gravity into the respective channels. The movement of the matrices along the distributing bar is effected by parallel screws, two upper and a lower screw, the threads of the screws engaging edges or cars of the matrices.

In practice it has been found that the matrices particularly the thicker ones hearing the letters or characters of greatest Width, in dropping from the distributing bar are often times caught or jammed between the forward faceof the threads of the lower screw and the opposite inner side wall of the channel.

The main object of the present invention is to provide an improved distributing mechanism of this general type which will be simple in construction, very effective in operation and which will be entirely free from the objection referred to.

The invention with other objects and advantages thereof and the novel construction, combination and arrangement of parts comprising the same will be understood from the following detailed description when considered in connection with the accompanying drawings forming part hereof and illustrating certain embodiments thereof.

In the drawings: Figure l is a front elevation of a distributing mechanism con structed in accordance with the present invention, Fig. 2 is a side elevation with parts shown in section, Figs. 3 and 4 are detail views illustrating a slightly modified construction.

The invention broadly comprehencls the provision of a lower conveyer screw con structed and arranged to have a thread portion adapted to engage the matrices to a less extent than the upper screw, and pro jecting within the range of the edges of the matrices to a less degree than that of the thread of the upper screw whereby more space is afforded for the passage of the matrices into the throat channels when released from the distributing bar and the danger of the matrices being caught or jammed against an inner side wall of the channel by the engagement of the lower feed screw with the upper edge or car of the matrix is greatly reduced.

In the drawings F igs: 1 and 2, in which I have illustrated one embodiment of the invention, 1 designates the distributor bar, 2' the supporting frame, 3 the magazine channels all of usual construction, the channels 3 for the matrices bearing the wider characters being arranged to the right at the farthest end of the distributor bar. 4 and 5 designate the upper conveyer screws and 6 the lower conveyer screw, said screws being suitably mounted for rotation in the frame 2 and adapted to rotate in the direction of the arrows. Any suitable means, not shown, may be provided for operating the screws. As will be understood the conveyer screws are adapted to engage edge portions or cars of the matrices and feed the matrices forwardly along the distributer bar the upper conveyer screws l and 5 engaging the opposite upper ears 8 of the matrix and the lower conveyer screw engaging a lower ear 9 of the matrix.

In accordance with the present invention the thread of the lower conveyer screw is reduced at different points to provide a plurality of reduced thread portions 10 extending completely around the screw, each of said reduced thread portions being located opposite one of the distributer channels and being adapted to engage the matrices when the latter stand directly over their proper throat channels at their point of release from the distributer bar.

In Fig. 3 of the drawings, I have illustrated a slightly modified construction of the lower feed screw, in this instance the feed screw being provided with reduced thread portions 10 extending part way around the screw, each of the reduced thread portions being located opposite a dis tributer channel and being adapted to be brought into engagement with the matrices when the latter stand directly over their appropriate throat channels at their point of release from the distributer bar, the screw with the reduced portions being properly proportioned with this end in view.

It will be remarked that in each of the constructions described provision is made whereby the lower conveyer screw has a thread portion that is adapted to engage the matrices to a less extent than the upper screw and projects within the rangeof the edges of the matrices to a less degree than that of the thread of the upper screw whereby more space is afforded for the passage of the matrices into the throat channels when released from the distributer bar and the danger of the matrices being caught or jammed against an inner wall of the channel by engagement of the lower feed screw with the upper edge or ear of the matrix is greatly reduced.

In the particular embodiment of the invention illustrated in Figs. 1 and 2, the reduced thread portions of the lower conveyer screw are shown grouped at one end of the screw at a distance from the receiving end of the distributer bar. In this connection it will be noted that in this class of machines the capitals and other wide characters are as a general rule distributed from the farther end of the distributer bar so that the teeth of these matrices as well as the toothed part of the distributer bar are not subjected to the same amount of wear as that part of the distributer bar nearest the point where the matrices enter on it, and as these matrices are not so frequently used or subjected to the same amount of wear, it is not essential to provide as large a contact surface with the threads of the lower conveyer screw as is necessary in the case of the matrices more frequently used and subject to greater wear.

I desire it to be understood that modifications and minor changes in the particular constructions shown in the drawings may be made without departing from the broad principles of the invention. While in the drawings, Figs. 1 and 2, the reduced thread portions of the main conveyer screw are shown grouped at one end of the screw at a distance from the receiving end of the bar, the reduced portions may be located at various points along the screw as may be found desirable.

IVhat I claim is:

1. In a machine of the character described, distributing mechanism including a distributer bar and upper and lower conveyer screws, the lower conveyer screw being constructed and arranged to project within the vertical plane of the edges of the matrices to a less degree than that of the thread of the upper screw.

In a machine of the character described, distributing mechanism'including a distributing bar and upper and lower conveyer screws, the lower conveyer screw be ing constructed and arranged to engage the matrices to a less extent than the upper screw and to project within the vertical plane of the edges of the matrices to a.less degree than that of the thread of the upper screw.

3. In a machine of the character described, distributing mechanism including a distributer bar and upper and lower conveyer screws, the lower conveyer screw having a thread portion offset laterally from the vertical plane of the innermost point of engagement of the thread of the upper screw with the matrices.

4. In a machine of the character described, distributing mechanism including distributing channels, a distributer bar and upper and lower conveyer screws, the lower conveyer screw having a thread portion offset laterally from the vertical plane of the innermost point of engagement of the thread of the upper conveyer screw with the mat rices, said oifset thread portion being located opposite one of the distributing channels.

5. In a machine of the character scribed, distributing mechanism including distributing channels, a distributer bar and upper and lower conveyer screws, the lower conveyer screw having thread portions of different height or radial projection, the thread portion of less radius being located opposite one of the distributing channels.

6. In a machine of the character described, distributing mechanism including distributing channels, a distributer bar and upper and lower conveyer screws, the lower conveyer screw having thread portions of different height or radial projection, the thread portion of less height or radial projection extending completely around the circumference of the screw, and being arranged opposite one of the distributing channels.

7 In a machine of the character described, distributing mechanism including distributing channels, a distributer bar and upper and lower conveyer screws, the lower conveyer screw having thread portions of de- I diiferent height or radial projection, the In testimony whereof I aifix my signature thread portions of less height or radial pr}? in the presence of two, Witnesses.

jection bein located at a distance from t e receiving e d of the distributer bar, and HANS PETERS each of said thread portions of less height Witnesses:

being arranged opposite one of the distrib- G. E. LAU,

uting channels. CHAS. GrLcHRIsT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

